Ron Didier – VP Engineering, Groschopp Author of Engineering/Design Tools for Motor Specification and Design
Ron’s Groschopp career in motor, gearmotor and integrated system design spans over 30 years. He is the leader of Groschopp’s engineering design team, and in his career he has worked on over 150 unique motor and integrated motion assembly designs for OEMs and custom applications. Ron is the author of MotorTecTM, Groschopp’s proprietary software for performance calculations and selection, including rapid, automated generation of motor efficiencies and performance data from Groschopp’s database of over 100,000 unique product designs. Groschopp’s STP Design Search , an online tool for motor and gearmotor selection, is based on MotorTec.
Ron also created the MotorTec STP calculator, for speed, torque and power calculations and unit conversions, which has been downloaded by over 6000 users since its introduction in 2006. The STP Calculator is available in both an online version, and a more fully-featured downaloadable desktop version.
Ron has also written sophisticated software for design of universal and permanent magnet motors that accelerates design and prototype time, and optimizes the overall motor specification for an application. Ron is a graduate of the Milwaukee School of Engineering with a degree in Electrical Engineering.
STP Speed, Torque & Power Calculator Powerful Program for Design Engineers - Online and as Desktop Download
M2OTORTEC™ STP PLUS provides a fast, easy way to calculate speed, torque, or power. Version 1.4 of MOTORTEC™ STP, Groschopp’s Speed, Torque and Power Calculator is available in both an online version and a full-featured downloadable desktop version from the Groschopp website. Ron Didier, Groschopp’s Vice President of Engineering, is the author of MOTORTEC STP PLUS, which was originally released in January 2006. Since then, STP PLUS has been enthusiastically received – with over 6000 downloads by a wide audience of engineers and scientists in private business and academic institutions.
Upgraded Feature for Electrical Input and Loss Calculations Highlights Motor Requirements and Simplifies Sizing
One of the primary features of Ver. 1.4 is the ability to calculate estimated electrical current and losses. “A major question in sizing a motor and making the right selection has to do with knowing if the available current will support the required output power,” said Didier. “With the new STP PLUS, you’re able to determine the current requirement based on the available voltage, and make sure that the efficiency of the motor you’re specifying will give you that desired power.”
Didier also explains that knowing the electrical loss (in watts) is a strong indication of the heat that is going to be generated by the motor, based on efficiency. “We regularly run into this when guiding customers through their applications,” added Didier. “If you know the rating of a motor and the amount of heat it can dissipate, you can make sure that the electrical loss doesn’t exceed the ratings, this is of particular interest when dealing with intermittent duty applications. We know that if the motor runs too hot, the insulation system of the motor will degrade. For every 10 degrees Celsius that a motor operates above its rated temperature, its insulation life is decreased by one half, which is significant.”
Other features include additional conversion factors of Torque units to include milli- Newton meters (mN-m). Didier explained that throughout the industry, there is a wide variety of units used for Speed, Torque and Power values. STP was originally designed for Groschopp’s own Application and Design Engineers, so that they could easily and accurately make conversions when assisting customers with applications. “It was so helpful to us, that we thought it would be great to make it available to others,” he said.
STP PLUS allows a user to print out a detailed report with Speed, Torque and Power with all available units listed, as well as a chart of efficiency and electrical input and losses. The report can be customized to show a project title and notes.
In future versions of STP PLUS, Groschopp is considering a calculation tool that would allow for an intermittent duty cycle to be factored in, so that intermittent and continuous duty ratings could be compared when making motor selections for an application.
STP Design Search™ Web-based tool that simplifies fractional horsepower motor and gearmotor selection for engineers and product designers.
STP Design Search is based on Groschopp’s time-saving MOTORTEC™ STP Calculator where two of three performance parameters, Speed, Torque and/or Power (STP), can be entered, along with motor type, gearbox type (if desired) and voltage.
How it works:
STP Design Search™ has sophisticated algorithms that calculate and match the desired performance specifications to the motor size and specifications of over 4200 motor and gearmotor products active in the website database. The Search results, the motors/ gearmotors that best “match” the specifications, are presented in ranking order of up to ten “best fit” matches, starting with the closest specification match. For gearmotor selections, these matches take into consideration motor and gearbox efficiencies to give designers “true” specifications on the gearmotor output.
What it can do for you:
For each of the 4200 web-active designs, its product detail page provides complete with performance curves and efficiency data, as well as 3D Solidmodels, 2D outline drawings and connection diagrams. This allows designers to quickly assess the product “fit” for your application, and have immediate access to resources that allow you to move forward with your project.